4. “Sarah”

One of the most pervasive falsehoods spread by Democrats during the 2012 election was the suggestion that Romney favored banning abortion even in cases of rape, incest or when the mother’s life was in jeopardy. His campaign’s most effective answer to the charge was this ad, released in mid-October. It checks all the boxes: a mom worried about the economy — and a former Obama supporter no less — goes online to check for herself if the facts bear out. “We just can’t afford more years,” she concludes.